Memosens CPS11E

Summary

Product identification

Memosens CPS11E pH sensor for standard applications in process technology and environmental engineering. Digital with Memosens 2.0 technology.

Application

Designed for long-term monitoring and limit control in processes with stable conditions. Suitable for:

• Chemical industry (strong acids/bases)
• Plastic industry
• Pulp and paper industry
• Power plants (e.g., flue gas cleaning)
• Oil and gas industry
• Incinerator plants
• Water and wastewater treatment
• Boiler feedwater and cooling water
• Well water and drinking water
• All industrial and municipal treatment plants

Features ATEX, IECEx, CSA C/US, NEPSI, Japan Ex, and INMETRO approvals for use in hazardous areas Zone 0, Zone 1, and Zone 2.

Operating limits

• Maximum pressure: Up to 17 bar (246.5 psi) absolute for applications A and B. Up to 7 bar (101.5 psi) absolute for application F.
• Temperature ranges:
  • Application A: –15 to 80 °C (5 to 176 °F)
  • Application B: 0 to 135 °C (32 to 275 °F)
  • Application F: 0 to 70 °C (32 to 158 °F)
• Ambient temperature range: Do not use below –15 °C (5 °F).
• Storage temperature: 0 to 50 °C (32 to 122 °F).
• Installation angle: Must be at least 15° from the horizontal.

Feed water

• Conductivity:
  • Reference system AA, TA: minimum 50 μS/cm.
  • Reference system AS, TS: minimum 0.1 μS/cm.

Product water

• pH measuring range:
  • Application A: 1 to 12 pH
  • Application B: 0 to 14 pH
  • Application F: 0 to 10 pH

Electrical

• Technology: Memosens 2.0 digital technology with non-contact, inductive signal transmission.
• Integrated sensor: NTC 30K temperature sensor for temperature compensation.
• Data transmission: Digital, interference-free. Stores manufacturer data, serial number, order code, date of manufacture, calibration data, operating data, sensor load, and more.

Mechanical / hydraulic

• Reference system options:
  • AA: PTFE reference junction, 3M KCl bridging electrolyte.
  • AS: PTFE reference junction, saturated KCl bridging electrolyte, salt storage.
  • TA: PTFE reference junction, Ag±-free, ion trap, 3M KCl bridging electrolyte.
  • TS: PTFE reference junction, Ag±-free, ion trap, saturated KCl bridging electrolyte, salt storage. (Note: TS may display incorrect values with rapid temperature changes; use with constant temperatures recommended).
• Junction: Large PTFE ring junction.
• Materials:
  • Sensor shaft: Glass.
  • pH membrane glass: Type A, B, F.
  • Metal lead: Ag/AgCl.
  • O-ring: FKM.
  • Process coupling: PPS fiber-glass reinforced.
  • Plug-in head: Memosens plug-in head, pressure resistance 16 bar (232 psi) relative.
• Process connection: Pg 13.5.
• Dimensions: See diagrams in the original document for specific lengths (120 / 225 / 360 / 425 mm) and weights.
• Weight: Ranges from 40 g to 100 g depending on installed length.
• Degree of protection: IP 68.

Disclaimer

This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror